Title :
Bulk modification of transparent materials by use of loosely focused femtosecond laser
Author :
Kamata, Masanao ; Ohta, Kouke ; Obara, Minoru
Author_Institution :
Dept. of Electron. & Electr. Eng., Keio Univ., Yokohama, Japan
Abstract :
We demonstrate the control of refractive index change inside silica glass and PMMA induced by a loosely focused femtosecond laser. By decreasing numerical aperture, several mm long single mode optical waveguide is fabricated by non-scanning process.
Keywords :
high-speed optical techniques; laser materials processing; optical focusing; optical waveguides; polymers; refractive index; transparency; PMMA; loosely focused femtosecond laser; optical fabrication; refractive index change control; single mode optical waveguide; transparent materials; Glass; Laser modes; Laser transitions; Optical control; Optical materials; Optical waveguides; Refractive index; Silicon compounds; Ultrafast optics; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on
Print_ISBN :
0-7803-7766-4
DOI :
10.1109/CLEOPR.2003.1277231
